Use markdown instead of text for help files

helix-term/src/commands/typed.rs

@@ -1816,7 +1816,9 @@ fn help(cx: &mut compositor::Context, args: &[Cow<str>], event: PromptEvent) ->
     // TODO: Open a list of commands / overview?
     ensure!(!args.is_empty(), "Help topic or keybind required");
 
-    if args[0] == "topics" {
+    if args[0] == "runtime" {
+        todo!()
+    } else if args[0] == "topics" {
         let dir_path = helix_loader::runtime_dir().join("help/topics");
 
         struct Topic(PathBuf);
@@ -1879,7 +1881,7 @@ fn label(&self, _data: &Self::Data) -> Spans {
             let mut path = helix_loader::runtime_dir();
             path.push("help");
             path.push(help_dir);
-            path.push(format!("{}.txt", command));
+            path.push(format!("{}.md", command));
 
             ensure!(path.is_file(), "No help available for '{}'", args_msg);
             let id = editor.open(&path, Action::HorizontalSplit)?;

helix-term/src/ui/mod.rs

@@ -450,7 +450,7 @@ pub fn help(_editor: &Editor, input: &str) -> Vec<Completion> {
                     .filter_map(|entry| {
                         let entry = entry.ok()?;
                         let path = entry.path();
-                        (path.extension()? == "txt")
+                        (path.extension()? == "md")
                             .then(|| path.file_stem().unwrap().to_string_lossy().into_owned())
                     })
                     .chain(
@@ -459,7 +459,7 @@ pub fn help(_editor: &Editor, input: &str) -> Vec<Completion> {
                                 entries.filter_map(|entry| {
                                     let entry = entry.ok()?;
                                     let path = entry.path();
-                                    (path.extension()? == "txt").then(|| {
+                                    (path.extension()? == "md").then(|| {
                                         format!(":{}", path.file_stem().unwrap().to_string_lossy())
                                     })
                                 })